Braided hose.



' 'Vy TNESSES:

YH. z. COBB. BBAIDED HOSE. PPLIOATIN TIL-EI) APR..12. 1909.

957,867',l Patented May 17, 1910.

F/G. 6. INVENTOR UNITED STATES PATENT OFFICE.

HENRY Z. COBB, OF MALDEN, MASSACHUSETTS, ASSIGFOR-TO vREVERE RUBBER COM- PANY, OF BOSTON. MASSACHUSETTS,

A CORPORATION OF MASSACHUSETTS.

BRAIDED HOSE.

Specification of Letters Patent. Patented luay 17, 1910.

Application filed April 12, 1909. Serial No. 489,305.

To all whom it may concern:

Be it known that I, HENRY Z. Conn, a citizen of the United States, residing at Malden, in the county of Middlesex and State of Massachusetts, have invented certain new and useful 'Improvements in Braided Hose, of which the following is a. specification.

This invention relates to braided hose or analogous tubular fabrics.

It 1s common to 'make braided hose by braiding one, two or more yarns or strands from each of the bobbins of the braider, the strands being either alternated at each crossing so as to braid a plain weave, or being overcast for the width of two or more strands, so as to form a more open weave. In the making of braided hose it is common to braid the fabric upon a lining tube of rubber, and to cover the braided fabric with a tube or layer of rubber or rubber composition. For a two-ply hose a second layer of fabric is braided. around this rubber covering. Upon the vulcanizing of the hose lthe braided web, or each braided layer, is 1mpregnated with the rubber of the inner and outer layers between which the braided fabric is embraced.

A braided hose has the advantage over a woven hose that by reason of the oblique or spiral direction or pitch of the threads or yarns composing the fabric, itl is more fienible than a woven fabric where the warps extend longitudinally and the wefts in sub- 'stantially transverse direction circumferentially of the hose. A braided hose is also less liable to kink when sharply bent. On the other hand a woven hose has certain advantages over a braided hose, particularly in strength and cheapness.

'The present'invention provides a novel construction of hose which combines the advantages of both a woven and a braided hose.

The hose is made with one or more braid ed layers or webs each consisting of strips or tapes of textile fabric braided together. These tapes are best made of woven fabric in any suitable length, and of a width which may approximate one fourth or threeeighths of an inch. The tapes may be woven of this width, thus securing selvages on both edges; or for greater cheapness the tapes may be vstrips out from a wide web of woven duck. The tapes, or the fabrics from which the tapes are thus cut, are associated or treated with rubber, as by being coated or rubber or rubber composition. It is preferable to friction the fabric in the wellknown way. For a single-ply hose the tapes thus formed arc braided together upon an inner tube, and are preferably covered with a layer of rubber or composition. For aV two-ply or multiple-ply hose, two or more of such braided, webs are superposed, the one around the other, with if desired a coating or layer of rubber between, although on account of the frictioning of the strips or tapes this is not indispensable. For a multiple-ply hose it is preferable to braid on the plural layers of fabric simultaneously, and to simultaneously unite them by braiding in interlacing threads or strands of suitable yarn, whereby to sew together the successive layers of braided tapes.

Figure l of the accompanying drawings is an oblique projection partlydisseoted away, showing the preferred embodiment of my invention in a twoply hose. Fig. 2 is an elevation thereof partly in longitudinal section. Fig. 3 is a transverse section showing somewhat diagrannnatically the interlacing strands, the remainder of the fabric being partly dissected away for this purpose. Fig. d; is a diagrammatic section, the braided fabrics being cut longitudinally and the interlacing strands being shown diagrammatically. Y elevation of a single-ply hose. Fig. (ishows one of the tapes or woven strips.

l will first describe the simple form of the invention shown in Fig. 5. lpon 'an inner tube a, usually of pure rubber, is formedthe braided fabric A, this being covered by the usual covering 7) of rubber or composition. The braided fabric A is made by braiding together strips d d, one of which is shown separately in Fig. 6. These strips, which l will call tapes, are of woven fabric, preferably du'ck, and treated with rubber or rubber composition, so as to be impregnated or coated therewith, being preferably frictioned on both sides. They may or may not have salvaged edges. These 'tapes are apimpregnated, preferably on both sides, with Fig. 5 is a dissected obliquev l l bobbius which are mounted in any ordinary l or suitable braiding machine, although they l might be manipi'ilated by hand. The tapes arorlaid'on fiatwise, that is, without any l twist which would bring them into edgewise relation with the core surface, and without ing braiding wget ier rages of textiie 'fabric iascmted with rabbin.' and subsequentlylvuL @mixing 'the hose,

ll. The process of making hose comprising braiding tgenhcr rapes of rubber-*freut uri textile fabric.

12. The process of making hose comprising braiding upon un inner tube :L layer o' tapes of rubber-treated textiie fabric.

The process of irlakiiig hose comprisimg "braiding rw@ layers Gf tape-S of rubberircziie elitiio fabric, one around the other.

Y The prrcas o 'making horse compris- D :(iii'aii-tzmousiy braiding *mo layers of tapes of textile fabric und a braided web of interiacirxg Strands uniting Said layers.

l5. The process of making hose comprising braiding upon an inner tube a layer of tapes of rubber-hinted textiie fabric, applying` :1n Outfr layer of rubber, and vulcaniziug.

lu witness vherco'h have hereunto signed my name. in the presence of two Subscribing witnesses.

. HENRY Z. COBB.

'Vitiiesses AirHUR C. FRASER, FRED VHITE. 

